THE PROSPECTOR'S HANDBOOK. 



sidcrably as depth is gained ; and, where no other outcrops 

 at a distance are observable, much wrong calculation as to 



Fio. 2. 



Fio. 3. 



future prospecting or sinking of shafts, &c., may be the 

 result. (Fig. 1.) 



Where "faults "occur, the course of lodes or beds maybe 

 irregular in direction on account of the dislocation of the 

 country rock ; but if the country 

 is made up of different kinds of 

 layers, the deviation may fre- 

 quently be easily determined by 

 the relative position of the beds. 

 (Figs. 2, 3, 4.) 



In examining the loose rocks on 

 the surface, the expert explorer 

 can often form a tolerably correct 

 notion of the nature, of an under- 

 ground lode, despite the fact that 

 exposure to weather entirely alters 

 a piece of rock which once upon 

 a time may have been metallic in 

 appearance before it became dis- 

 connected from its original position. So, in scaling the 

 heights, he casts his glance in every direction, to observe 

 if the " country rock " be " kindly " for veins, and all the 

 while keeps a sharp look out for that kind of rock known 



TIG. 4. 



